EP2269813A2 - Press punch for a rotary press - Google Patents

Press punch for a rotary press Download PDF

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Publication number
EP2269813A2
EP2269813A2 EP10006112A EP10006112A EP2269813A2 EP 2269813 A2 EP2269813 A2 EP 2269813A2 EP 10006112 A EP10006112 A EP 10006112A EP 10006112 A EP10006112 A EP 10006112A EP 2269813 A2 EP2269813 A2 EP 2269813A2
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EP
European Patent Office
Prior art keywords
punch
press
transition region
mirror surface
cylindrical surface
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EP10006112A
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German (de)
French (fr)
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EP2269813B1 (en
EP2269813A3 (en
Inventor
Friedrich Meissner
Stefan Lüdemann
Jan Naeve
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Fette Compacting GmbH
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Fette GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/08—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/065—Press rams

Definitions

  • the invention relates to a press die for a rotary press, comprising a shank, a punch head arranged at one shank end and a press region arranged at the other shank end, wherein the punch head has an upper mirror surface, an outer cylindrical surface and a curved transition region between the mirror surface and the cylindrical surface.
  • Rotary presses for the production of tablets and similar compacts have lower and upper punches, which cooperate with die holes in a die plate to process filled powder into compacts.
  • the molds with which the punches interact are referred to as dies, which are secured as separate sleeve-like inserts in holes in the die plate.
  • press punches which have a shaft, at one end of a stamp head and at the other end a pressing region is arranged, which cooperates with the die holes to press the powder.
  • the stamp head has at its top a usually flat mirror surface, which cooperates with pressure rollers of the rotary press. The diameter of the mirror surface determines the pressure holding time of the ram, ie at a given speed, the time in which the ram interact with the powder to be pressed.
  • the punch heads also have a cylindrical surface and a generally rounded transition region between the cylindrical surface and the mirror surface.
  • Known punch heads are constructed with geometrically defined radii and straight lines. On its underside, the punch heads pass into the shaft in a conical section, for example.
  • the geometrical design and dimensions of punch heads for rotary presses are standardized by DIN ISO 18084: 2006-09.
  • the invention is therefore an object of the invention to provide a press ram of the type mentioned, in which the noise emissions during operation further reduced and wear of the punch heads and the pressure rollers is further reduced.
  • the invention solves the problem in that the mirror surface and the transition region form a three-dimensional surface whose course is described in at least one radial direction by a mathematical function whose second derivative is continuous.
  • the mirror surface can be flat and circular in plan view. Together with the transition region, it forms a curved surface of the stamp head, with the transition region opening directly into the mirror surface.
  • the height of the stamp head decreases steadily from the mirror surface to the cylinder surface in particular.
  • the noise emissions occurring in the prior art and the wear caused by an unfavorable, especially non-uniform interaction between the pressure rollers and the punch heads The reason for this is that the transition region itself and in particular its mouth in the mirror surface has abrupt changes in radius. The transition from the outer radii of the transition region in the mirror surface is therefore uneven. This results in a likewise uneven contact with the pressure rollers and thus high noise emissions and wear.
  • the course of the upper side of the stamp head in at least one radial direction is described by a mathematical function which is continuous in the second derivative.
  • the at least one radial direction may in particular be the direction in which the pressure rollers engage the punch heads.
  • the pressure rollers therefore roll evenly on the punch heads.
  • the contact and thus the introduction of force are equalized by acting on the punch heads pressure rollers and reduces the wear on the punch head and the pressure rollers.
  • less vibrations of the machine frame occur, so that noise emissions are reduced.
  • the mathematical function can be, for example, a polynomial function which can assume a constant value in the area of the mirror surface.
  • the diameter of the head can be larger than 25 mm. However, smaller punch head diameters are possible.
  • the rotary press may in particular be a tablet press. In order to further uniform the interaction of the stamp head with the pressure rollers, the course of the three-dimensional surface in any radial direction can be described by the mathematical function continuous in second derivative.
  • the stamp head may also be rotationally symmetric. This allows an installation of the press ram into the rotary press in any rotational orientation.
  • the radius of curvature of the three-dimensional surface in the radial direction from the mirror surface to the cylindrical surface can steadily decrease.
  • the radius therefore decreases starting from the center of the mirror surface in the radial direction.
  • the radius is infinite with plane mirror surface.
  • a region rounded off with at least one predetermined radius can be provided between the transition region and the cylindrical surface.
  • at least one edge may also be provided between the transition region and the cylindrical surface.
  • the transition from the transition region to the Cylinder surface thus not continuous in second derivative.
  • the three-dimensional surface described by the mathematical function continuous in the second derivative can also include the cylindrical surface. In this case, the transition region thus opens directly into both the mirror surface and the cylindrical surface.
  • the stamp head may preferably be convex, in particular spherical, from the cylindrical surface into the shank.
  • a spherical design of the punch head base reduces the wear in the phase in which the punch is pulled out of the respective die bore.
  • the contact surface to the respective control cams is increased by the spherical shape.
  • the invention also relates to a rotary press with a rotor having an upper and a lower punch guide, in each of which a plurality of press dies are guided, which cooperate with holes arranged between the upper and lower punch guide die plate, wherein the punch in guide holes of Stamp guides are axially movable and their punch heads cooperate for pressing powdered material in the die holes with pressure rollers of the rotary press.
  • a section of a press ram 10 according to the invention is shown in its side view. Of the ram 10, the upper end of the shaft 12 is shown with the punch head 14. At the opposite end of the shaft 12, not shown, a known pressing area is provided which cooperates with the installation of the press ram 10 in a rotary tablet press with suitable die holes for pressing powdered tablet material.
  • the stamp head 14 is rotationally symmetrical, wherein the axis of rotational symmetry at the reference numeral 15 is shown in dashed lines. It also has an outer cylindrical surface 18. Between the cylindrical surface 18 and the mirror surface 16 there is a curved transition region 20.
  • the mirror surface 16 and the transition region 20 form a three-dimensional curved surface whose course is described in any radial direction of the punch head 14 by a mathematical function continuous in second derivative.
  • the radius of curvature of the three-dimensional surface steadily decreases from the center of the mirror surface 16 in the radial outward direction.
  • the height of the punch head 14 also decreases starting from the Spiegelf kaue 16 to the cylindrical surface 18 steadily.
  • a region 22 rounded off with a predetermined radius is provided.
  • a convex transitional region 24 is provided, which merges into the cylinder surface 18 via a first rounded region 26 and merges into the shaft via a second rounded region 28 ,
  • the function 30 may then be defined as constant, such that it maps the planar mirror surface. It should be noted that in Fig. 2 the origin of the coordinates has been placed on the lower edge of the three-dimensional surface formed by the transition region 20 and the mirror surface 16. The y-axis thus represents the height of the punch head 14. Die in Fig. 2 As shown, function 30, when rotated about a suitable axis, biases the three-dimensional surface formed by transition region 20 and mirror surface 16. In the diagram in Fig. 2 Also shown in phantom at 32 is the first derivative f '(x) of the function f (x). Finally, at reference numeral 34 in FIG Fig. 2 The second derivative f '(x) of the function f (x) is shown in dashed lines. It can be seen that the second derivative f '(x) of the function f (x) is continuous.
  • Fig. 1 shown pressing die reduced when operating in a rotary tablet press both occurring during contact with the pressure rollers noise emissions and the wear of the punch head and the pressure rollers.
  • the very flat transition of the transition area leads 20 in the mirror surface 16 to an increased pressure holding time of the stamp, so that even difficult to be pressed materials are easily processed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Powder Metallurgy (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Abstract

The stamp (10) has a shaft (12), and a stamp head (14) arranged at an end of the shaft. A pressing area is arranged at another end of the shaft. The head has an upper reflecting surface (16), an outer cylinder surface (18) and a curved transition area (20) that is formed between the reflecting surface and the cylinder surface. The reflecting surface and the transition area form a three-dimensional surface, where a course of the three-dimensional surface is described by a mathematical function, and height of the head is decreased from the reflecting surface to the cylinder surface constantly. An independent claim is also included for a rotary tabletting press comprising a press stamp.

Description

Die Erfindung betrifft einen Pressstempel für eine Rundläuferpresse, mit einem Schaft, einem an einem Schaftende angeordneten Stempelkopf und einem am anderen Schaftende angeordneten Pressbereich, wobei der Stempelkopf eine obere Spiegelfläche, eine äußere Zylinderfläche und einen gekrümmten Übergangsbereich zwischen der Spiegelfläche und der Zylinderfläche aufweist. Rundläuferpressen zur Herstellung von Tabletten und ähnlichen Presslingen weisen Unter- und Oberstempel auf, die mit Matrizenbohrungen in einer Matrizenscheibe zusammenwirken, um eingefülltes Pulver zu Presslingen zu verarbeiten. Die Formen, mit denen die Stempel zusammenwirken, werden als Matrizen bezeichnet, die als separate hülsenartige Einsätze in Bohrungen der Matrizenscheibe befestigt werden. In den Rundläuferpressen kommen Pressstempel zum Einsatz, die einen Schaft aufweisen, an dessen einem Ende ein Stempelkopf und an dessen anderem Ende ein Pressbereich angeordnet ist, der mit den Matrizenbohrungen zusammenwirkt, um das Pulver zu verpressen. Der Stempelkopf weist an seiner Oberseite eine üblicherweise plane Spiegelfläche auf, die mit Druckrollen der Rundläuferpresse zusammenwirkt. Der Durchmesser der Spiegelfläche bestimmt die Druckhaltezeit der Pressstempel, d.h. bei gegebener Geschwindigkeit die Zeit, in der die Pressstempel mit dem zu verpressenden Pulver zusammenwirken. Die Stempelköpfe weisen außerdem eine Zylinderfläche auf und einen zwischen der Zylinderfläche und der Spiegelfläche angeordneten, üblicherweise gerundeten Übergangsbereich. Bekannte Stempelköpfe sind mit geometrisch definierten Radien und Geraden konstruiert. An ihrer Unterseite gehen die Stempelköpfe in einem beispielsweise konischen Abschnitt in den Schaft über. Die geometrische Ausbildung und Abmessung von Stempelköpfen für Rundläuferpressen sind normiert durch die DIN ISO 18084:2006-09.The invention relates to a press die for a rotary press, comprising a shank, a punch head arranged at one shank end and a press region arranged at the other shank end, wherein the punch head has an upper mirror surface, an outer cylindrical surface and a curved transition region between the mirror surface and the cylindrical surface. Rotary presses for the production of tablets and similar compacts have lower and upper punches, which cooperate with die holes in a die plate to process filled powder into compacts. The molds with which the punches interact are referred to as dies, which are secured as separate sleeve-like inserts in holes in the die plate. In the rotary presses press punches are used, which have a shaft, at one end of a stamp head and at the other end a pressing region is arranged, which cooperates with the die holes to press the powder. The stamp head has at its top a usually flat mirror surface, which cooperates with pressure rollers of the rotary press. The diameter of the mirror surface determines the pressure holding time of the ram, ie at a given speed, the time in which the ram interact with the powder to be pressed. The punch heads also have a cylindrical surface and a generally rounded transition region between the cylindrical surface and the mirror surface. Known punch heads are constructed with geometrically defined radii and straight lines. On its underside, the punch heads pass into the shaft in a conical section, for example. The geometrical design and dimensions of punch heads for rotary presses are standardized by DIN ISO 18084: 2006-09.

Bei bekannten Stempelköpfen kommt es jedoch im Zuge der Wechselwirkung zwischen den Druckrollen und den Stempelköpfen zu einer erheblichen Geräuschemission und einem Verschleiß an Stempel und Druckrolle. Insbesondere der Stempelkopf verschleißt dabei verstärkt am Übergang zur Spiegelfläche. Gerade bei kleineren Stempelformaten sind darüber hinaus beim Stand der Technik die Druckhaltezeiten verhältnismäßig gering, so dass schwierig zu verpressende Materialien problematisch sein können. Schließlich kommt es beim Stand der Technik zu erhöhten Vibrationen des Maschinengestells unter bestimmten Betriebsbedingungen, was ebenfalls zu unerwünschten Geräuschemissionen führt. In DE 10 2007 043 582 B3 wird vorgeschlagen, Stempelköpfe an gegenüberliegenden Seiten mit Abflachungen zu versehen, so dass diese mit geringerem Abstand zueinander positioniert werden können. Dies verbessert die Wechselwirkung mit den Druckrollen.In known punch heads, however, in the course of the interaction between the pressure rollers and the punch heads, considerable noise emission and wear on the punch and pressure roller occur. In particular, the stamp head wears reinforced at the transition to the mirror surface. Especially with smaller stamp formats beyond the pressure holding times are relatively low in the prior art, so that difficult to be pressed materials can be problematic. Finally, in the prior art increased vibrations of the machine frame occur under certain operating conditions, which also leads to undesirable noise emissions. In DE 10 2007 043 582 B3 It is proposed to provide punch heads on opposite sides with flats, so that they can be positioned with less distance from each other. This improves the interaction with the pressure rollers.

Ausgehend von dem erläuterten Stand der Technik liegt der Erfindung daher die Aufgabe zugrunde, einen Pressstempel der eingangs genannten Art bereit zu stellen, bei dem die Geräuschemissionen im Betrieb weiter reduziert und ein Verschleiß der Stempelköpfe und der Druckrollen weiter verringert ist.Based on the explained prior art, the invention is therefore an object of the invention to provide a press ram of the type mentioned, in which the noise emissions during operation further reduced and wear of the punch heads and the pressure rollers is further reduced.

Die Erfindung löst dieses Problem durch den Gegenstand von Anspruch 1. Vorteilhafte Ausgestaltungen finden sich in den abhängigen Ansprüchen, der Beschreibung und den Figuren.The invention solves this problem by the subject matter of claim 1. Advantageous embodiments can be found in the dependent claims, the description and the figures.

Für einen Pressstempel der eingangs genannten Art löst die Erfindung die Aufgabe dadurch, dass die Spiegelfläche und der Übergangsbereich eine dreidimensionale Fläche bilden, deren Verlauf in zumindest einer radialen Richtung durch eine mathematische Funktion beschrieben ist, deren zweite Ableitung stetig ist. Die Spiegelfläche kann dabei eben sein und in Draufsicht kreisförmig ausgebildet sein. Sie bildet gemeinsam mit dem Übergangsbereich eine gekrümmte Oberfläche des Stempelkopfes, wobei der Übergangsbereich direkt in die Spiegelfläche mündet. Die Höhe des Stempelkopfes nimmt von der Spiegelfläche zu der Zylinderfläche insbesondere stetig ab. Erfindungsgemäß ist erkannt worden, dass die beim Stand der Technik auftretenden Geräuschemissionen und der Verschleiß durch eine ungünstige, insbesondere ungleichmäßige Wechselwirkung zwischen den Druckrollen und den Stempelköpfen verursacht werden. Der Grund hierfür ist, dass der Übergangsbereich selbst und insbesondere seine Mündung in die Spiegelfläche sprunghafte Radiusänderungen aufweist. Der Übergang von den Außenradien des Übergangsbereichs in die Spiegelfläche ist daher ungleichmäßig. Dadurch kommt es zu einem ebenfalls ungleichmäßigen Kontakt mit den Druckrollen und damit hohen Geräuschemissionen und Verschleiß.For a ram of the type mentioned, the invention solves the problem in that the mirror surface and the transition region form a three-dimensional surface whose course is described in at least one radial direction by a mathematical function whose second derivative is continuous. The mirror surface can be flat and circular in plan view. Together with the transition region, it forms a curved surface of the stamp head, with the transition region opening directly into the mirror surface. The height of the stamp head decreases steadily from the mirror surface to the cylinder surface in particular. According to the invention it has been recognized that the noise emissions occurring in the prior art and the wear caused by an unfavorable, especially non-uniform interaction between the pressure rollers and the punch heads. The reason for this is that the transition region itself and in particular its mouth in the mirror surface has abrupt changes in radius. The transition from the outer radii of the transition region in the mirror surface is therefore uneven. This results in a likewise uneven contact with the pressure rollers and thus high noise emissions and wear.

Erfindungsgemäß ist der Verlauf der Oberseite des Stempelkopfes in zumindest einer radialen Richtung durch eine in zweiter Ableitung stetige mathematische Funktion beschrieben. Die mindestens eine radiale Richtung kann insbesondere die Richtung sein, in der die Druckrollen an den Stempelköpfen angreifen. Es treten in dem Übergangsbereich und der Spiegelfläche und insbesondere im Bereich der Mündung des Übergangsbereichs in die Spiegelfläche erfindungsgemäß also keine Radiensprünge auf. Die Druckrollen wälzen daher gleichmäßiger auf den Stempelköpfen ab. Dadurch werden der Kontakt und damit die Krafteinleitung durch die an den Stempelköpfen angreifenden Druckrollen vergleichmäßigt und der Verschleiß an dem Stempelkopf und den Druckrollen verringert. Außerdem treten weniger Vibrationen des Maschinengestells auf, so dass Geräuschemissionen reduziert sind. Durch den sehr flachen Kurvenübergang des Übergangsbereichs in die Spiegelfläche wird durch die angreifenden Druckrollen auch bereits dicht neben der Spiegelfläche eine hohe Presskraft erreicht. Dies erhöht die effektive Druckhaltezeit der Stempel, wodurch erfindungsgemäß auch schwierig zu verpressende Materialien zuverlässig verarbeitet werden können.According to the invention, the course of the upper side of the stamp head in at least one radial direction is described by a mathematical function which is continuous in the second derivative. The at least one radial direction may in particular be the direction in which the pressure rollers engage the punch heads. In the transition region and the mirror surface and in particular in the region of the mouth of the transition region in the mirror surface, therefore, no radial jumps occur according to the invention. The pressure rollers therefore roll evenly on the punch heads. As a result, the contact and thus the introduction of force are equalized by acting on the punch heads pressure rollers and reduces the wear on the punch head and the pressure rollers. In addition, less vibrations of the machine frame occur, so that noise emissions are reduced. Due to the very flat curve transition of the transition region in the mirror surface is achieved by the attacking pressure rollers already close to the mirror surface, a high pressing force. This increases the effective Pressure holding time of the stamp, whereby according to the invention also difficult to be pressed materials can be reliably processed.

Die mathematische Funktion kann beispielsweise eine Polynom-Funktion sein, die im Bereich der Spiegelfläche einen konstanten Wert annehmen kann. Der Durchmesser des Kopfes kann größer als 25 mm sein. Es sind jedoch auch kleinere Stempelkopfdurchmesser möglich. Bei der Rundläuferpresse kann es sich insbesondere um eine Tablettenpresse handeln. Um die Wechselwirkung des Stempelkopfes mit den Druckrollen weiter zu vergleichmäßigen, kann der Verlauf der dreidimensionalen Fläche in einer beliebigen radialen Richtung durch die in zweiter Ableitung stetige mathematische Funktion beschrieben sein. Der Stempelkopf kann außerdem rotationssymmetrisch sein. Dies ermöglicht einen Einbau des Pressstempels in die Rundläuferpresse in beliebiger Drehorientierung.The mathematical function can be, for example, a polynomial function which can assume a constant value in the area of the mirror surface. The diameter of the head can be larger than 25 mm. However, smaller punch head diameters are possible. The rotary press may in particular be a tablet press. In order to further uniform the interaction of the stamp head with the pressure rollers, the course of the three-dimensional surface in any radial direction can be described by the mathematical function continuous in second derivative. The stamp head may also be rotationally symmetric. This allows an installation of the press ram into the rotary press in any rotational orientation.

Nach einer weiteren Ausgestaltung kann der Krümmungsradius der dreidimensionalen Fläche in radialer Richtung von der Spiegelfläche zu der Zylinderfläche stetig abnehmen. Der Radius nimmt also ausgehend von dem Zentrum der Spiegelfläche in radialer Richtung ab. Im Bereich der Spiegelfläche ist der Radius bei planer Spiegelfläche unendlich. Eine solche Ausgestaltung sichert einen besonders gleichmäßigen Kontakt mit den Druckrollen und damit einem besonders gleichmäßigen Druckaufbau, so dass Geräuschemissionen und Verschleiß weiter minimiert werden.According to a further embodiment, the radius of curvature of the three-dimensional surface in the radial direction from the mirror surface to the cylindrical surface can steadily decrease. The radius therefore decreases starting from the center of the mirror surface in the radial direction. In the area of the mirror surface, the radius is infinite with plane mirror surface. Such a configuration ensures a particularly uniform contact with the pressure rollers and thus a particularly uniform pressure build-up, so that noise emissions and wear are further minimized.

Gemäß einer weiteren Ausgestaltung kann zwischen dem Übergangsbereich und der Zylinderfläche ein mit mindestens einem vorgegebenen Radius abgerundeter Bereich vorgesehen sein. Nach einer alternativen Ausgestaltung kann zwischen dem Übergangsbereich und der Zylinderfläche auch mindestens eine Kante vorgesehen sein. Bei diesen Ausgestaltungen ist der Übergang von Übergangsbereich in die Zylinderfläche also nicht in zweiter Ableitung stetig. Von größerer Bedeutung bezüglich der Wechselwirkung mit den Rollen ist nämlich der Übergang in die Spiegelflächen, da dort die Druckrollen angreifen. Um jedoch auch bei mit größerem Abstand zueinander verbauten Pressstempeln die Wechselwirkung mit den Druckrollen zu vergleichmäßigen, kann die durch die in zweiter Ableitung stetige mathematische Funktion beschriebene dreidimensionale Fläche die Zylinderfläche auch einschließen. In diesem Fall mündet der Übergangsbereich also direkt sowohl in die Spiegelfläche als auch in die Zylinderfläche. Zwischen der Spiegelfläche und der Zylinderfläche ist also nur der Übergangsbereich vorgesehen. Der Stempelkopf kann vorzugsweise konvex, insbesondere kugelförmig, von der Zylinderfläche in den Schaft übergehen. Eine kugelförmige Ausbildung der Stempelkopfunterseite verringert den Verschleiß in der Phase, in der der Stempel aus der jeweiligen Matrizenbohrung herausgezogen wird. Insbesondere wird durch die Kugelform die Kontaktfläche zu den jeweiligen Steuerkurven vergrößert.According to a further embodiment, a region rounded off with at least one predetermined radius can be provided between the transition region and the cylindrical surface. According to an alternative embodiment, at least one edge may also be provided between the transition region and the cylindrical surface. In these embodiments, the transition from the transition region to the Cylinder surface thus not continuous in second derivative. Of greater importance with respect to the interaction with the rollers is namely the transition into the mirror surfaces, since there attack the pressure rollers. However, in order to even out the interaction with the pressure rollers even when installed at a greater distance from each other press punches, the three-dimensional surface described by the mathematical function continuous in the second derivative can also include the cylindrical surface. In this case, the transition region thus opens directly into both the mirror surface and the cylindrical surface. Between the mirror surface and the cylindrical surface so only the transition region is provided. The stamp head may preferably be convex, in particular spherical, from the cylindrical surface into the shank. A spherical design of the punch head base reduces the wear in the phase in which the punch is pulled out of the respective die bore. In particular, the contact surface to the respective control cams is increased by the spherical shape.

Die Erfindung betrifft außerdem eine Rundläuferpresse mit einem Rotor, der eine obere und eine untere Stempelführung aufweist, in denen jeweils eine Vielzahl von erfindungsgemäßen Pressstempeln geführt sind, die mit Bohrungen einer zwischen der Ober- und Unterstempelführung angeordneten Matrizenscheibe zusammenwirken, wobei die Stempel in Führungsbohrungen der Stempelführungen axial bewegbar sind und ihre Stempelköpfe zum Verpressen von pulverförmigem Material in den Matrizenbohrungen mit Druckrollen der Rundläuferpresse zusammenwirken.The invention also relates to a rotary press with a rotor having an upper and a lower punch guide, in each of which a plurality of press dies are guided, which cooperate with holes arranged between the upper and lower punch guide die plate, wherein the punch in guide holes of Stamp guides are axially movable and their punch heads cooperate for pressing powdered material in the die holes with pressure rollers of the rotary press.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand einer Zeichnung näher erläutert. Es zeigen schematisch:

Fig. 1
einen erfindungsgemäßen Pressstempel in einer ausschnittsweisen Seitenansicht, und
Fig. 2
ein Diagramm zur Veranschaulichung mathematischer Funktionen.
An embodiment of the invention will be explained in more detail with reference to a drawing. They show schematically:
Fig. 1
a press stamp according to the invention in a fragmentary side view, and
Fig. 2
a diagram illustrating mathematical functions.

Soweit nichts anderes angegeben ist, bezeichnen in den Figuren gleiche Bezugszeichen gleiche Gegenstände. In Fig. 1 ist ein Ausschnitt eines erfindungsgemäßen Pressstempels 10 in seiner Seitenansicht dargestellt. Von dem Pressstempel 10 ist das obere Ende des Schafts 12 mit dem Stempelkopf 14 gezeigt. An dem nicht dargestellten gegenüberliegenden Ende des Schafts 12 ist ein an sich bekannter Pressbereich vorgesehen, der beim Einbau des Pressstempels 10 in eine Rundläufertablettenpresse mit geeigneten Matrizenbohrungen zum Verpressen von pulverförmigem Tablettenmaterial zusammenwirkt. Der Stempelkopf 14 ist rotationssymmetrisch, wobei die Rotationssymmetrieachse bei dem Bezugszeichen 15 gestrichelt dargestellt ist. Der Stempelkopf 14 besitzt eine obere plane und in Draufsicht kreisförmige Spiegelfläche 16. Er besitzt außerdem eine äußere Zylinderfläche 18. Zwischen der Zylinderfläche 18 und der Spiegelfläche 16 befindet sich ein gekrümmter Übergangsbereich 20. In dem dargestellten Beispiel bilden die Spiegelfläche 16 und der Übergangsbereich 20 eine dreidimensionale gekrümmte Fläche, deren Verlauf in einer beliebigen radialen Richtung des Stempelkopfes 14 durch eine in zweiter Ableitung stetige mathematische Funktion beschrieben ist. Insbesondere nimmt in dem gezeigten Beispiel der Krümmungsradius der dreidimensionalen Fläche ausgehend von dem Zentrum der Spiegelfläche 16 in radialer Richtung nach außen stetig ab. Die Höhe des Stempelkopfes 14 nimmt ebenfalls ausgehend von der Spiegelfäche 16 zu der Zylinderfläche 18 stetig ab. Zwischen dem Übergangsbereich 20 und der Zylinderfläche 18 ist ein mit einem vorgegebenen Radius abgerundeter Bereich 22 vorgesehen. An der Unterseite des Stempelkopfes 14 ist zwischen der Zylinderfläche 18 und dem Schaft 12 ein konvexer, in dem Beispiel kugelförmiger, Übergangsbereich 24 vorgesehen, der über einen ersten gerundeten Bereich 26 in die Zylinderfläche 18 übergeht und über einen zweiten gerundeten Bereich 28 in den Schaft übergeht.Unless otherwise indicated, like reference characters designate like items throughout the figures. In Fig. 1 a section of a press ram 10 according to the invention is shown in its side view. Of the ram 10, the upper end of the shaft 12 is shown with the punch head 14. At the opposite end of the shaft 12, not shown, a known pressing area is provided which cooperates with the installation of the press ram 10 in a rotary tablet press with suitable die holes for pressing powdered tablet material. The stamp head 14 is rotationally symmetrical, wherein the axis of rotational symmetry at the reference numeral 15 is shown in dashed lines. It also has an outer cylindrical surface 18. Between the cylindrical surface 18 and the mirror surface 16 there is a curved transition region 20. In the illustrated example, the mirror surface 16 and the transition region 20 form a three-dimensional curved surface whose course is described in any radial direction of the punch head 14 by a mathematical function continuous in second derivative. In particular, in the example shown, the radius of curvature of the three-dimensional surface steadily decreases from the center of the mirror surface 16 in the radial outward direction. The height of the punch head 14 also decreases starting from the Spiegelfäche 16 to the cylindrical surface 18 steadily. Between the transition region 20 and the cylindrical surface 18, a region 22 rounded off with a predetermined radius is provided. On the underside of the punch head 14, between the cylindrical surface 18 and the shaft 12, a convex transitional region 24 is provided, which merges into the cylinder surface 18 via a first rounded region 26 and merges into the shaft via a second rounded region 28 ,

In Fig. 2 ist eine mathematische Funktion f(x) bei dem Bezugszeichen 30 dargestellt, die den zweidimensionalen Verlauf des Übergangsbereichs 20 bis zu der Spiegelfläche 16 in beliebiger radialer Richtung abbildet. Es handelt sich dabei um eine Polynomfunktion der folgenden Art: f x = a ⋅ x 3 - b ⋅ x 2 + c ⋅ x

Figure imgb0001

, wobei a, b und c geeignete Konstanten sind, deren Wert sich abhängig von der gewünschten geometrischen Ausbildung des Stempelkopfes bestimmt.In Fig. 2 is a mathematical function f (x) at the reference numeral 30, which images the two-dimensional course of the transition region 20 to the mirror surface 16 in any radial direction. It is a polynomial function of the following kind: f x = a ⋅ x 3 - b ⋅ x 2 + c ⋅ x
Figure imgb0001
, where a, b and c are suitable constants whose value is determined depending on the desired geometric design of the stamp head.

Oberhalb der in Fig. 2 gezeigten Werte der x-Achse kann die Funktion 30 dann beispielsweise als konstant definiert sein, so dass sie die plane Spiegelfläche abbildet. Es ist zu beachten, dass in Fig. 2 der Koordinatenursprung auf den unteren Rand der durch den Übergangsbereich 20 und die Spiegelfläche 16 gebildeten dreidimensionalen Fläche gelegt wurde. Die y-Achse stellt somit die Höhe des Stempelkopfes 14 dar. Die in Fig. 2 gezeigte Funktion 30 spannt entsprechend bei einer Rotation um eine geeignete Achse die durch den Übergangsbereich 20 und die Spiegelfläche 16 gebildete dreidimensionale Fläche auf. In dem Diagramm in Fig. 2 weiterhin dargestellt ist strichpunktiert bei dem Bezugszeichen 32 die erste Ableitung f'(x) der Funktion f(x). Schließlich ist bei dem Bezugszeichen 34 in Fig. 2 gestrichelt die zweiten Ableitung f'(x) der Funktion f(x) dargestellt. Es ist zu erkennen, dass die zweite Ableitung f'(x) der Funktion f(x) stetig ist.Above the in Fig. 2 For example, the function 30 may then be defined as constant, such that it maps the planar mirror surface. It should be noted that in Fig. 2 the origin of the coordinates has been placed on the lower edge of the three-dimensional surface formed by the transition region 20 and the mirror surface 16. The y-axis thus represents the height of the punch head 14. Die in Fig. 2 As shown, function 30, when rotated about a suitable axis, biases the three-dimensional surface formed by transition region 20 and mirror surface 16. In the diagram in Fig. 2 Also shown in phantom at 32 is the first derivative f '(x) of the function f (x). Finally, at reference numeral 34 in FIG Fig. 2 The second derivative f '(x) of the function f (x) is shown in dashed lines. It can be seen that the second derivative f '(x) of the function f (x) is continuous.

Der in Fig. 1 gezeigte erfindungsgemäße Pressstempel verringert beim Betrieb in einer Rundläufertablettenpresse sowohl die beim Kontakt mit den Druckrollen auftretenden Geräuschemissionen als auch den Verschleiß des Stempelkopfes und der Druckrollen. Außerdem führt der sehr flache Übergang des Übergangsbereichs 20 in die Spiegelfläche 16 zu einer erhöhten Druckhaltezeit der Stempel, so dass auch schwierig zu verpressende Materialien problemlos verarbeitbar sind.The in Fig. 1 shown pressing die reduced when operating in a rotary tablet press both occurring during contact with the pressure rollers noise emissions and the wear of the punch head and the pressure rollers. In addition, the very flat transition of the transition area leads 20 in the mirror surface 16 to an increased pressure holding time of the stamp, so that even difficult to be pressed materials are easily processed.

Claims (9)

Pressstempel für eine Rundläuferpresse, mit einem Schaft (12), einem an einem Schaftende angeordneten Stempelkopf (14) und einem am anderen Schaftende angeordneten Pressbereich, wobei der Stempelkopf (14) eine obere Spiegelfläche (16), eine äußere Zylinderfläche (18) und einen gekrümmten Übergangsbereich (20) zwischen der Spiegelfläche (16) und der Zylinderfläche (18) aufweist, dadurch gekennzeichnet, dass die Spiegelfläche (16) und der Übergangsbereich (20) eine dreidimensionale Fläche bilden, deren Verlauf in zumindest einer radialen Richtung durch eine mathematische Funktion (30) beschrieben ist, deren zweite Ableitung stetig ist.A punch for a rotary press, comprising a shaft (12), a punch head (14) arranged at one shaft end and a pressing region arranged at the other shaft end, wherein the punch head (14) has an upper mirror surface (16), an outer cylindrical surface (18) and a curved transition region (20) between the mirror surface (16) and the cylindrical surface (18), characterized in that the mirror surface (16) and the transition region (20) form a three-dimensional surface whose course in at least one radial direction by a mathematical function (30) whose second derivative is continuous. Pressstempel nach Anspruch 1, dadurch gekennzeichnet, dass der Verlauf der Fläche in einer beliebigen radialen Richtung durch die mathematische Funktion (30) beschrieben ist.A press ram according to claim 1, characterized in that the course of the surface in any radial direction is described by the mathematical function (30). Pressstempel nach Anspruch 2, dadurch gekennzeichnet, dass der Stempelkopf (14) rotationssymmetrisch ist.Press ram according to claim 2, characterized in that the punch head (14) is rotationally symmetrical. Pressstempel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Krümmungsradius der dreidimensionalen Fläche in radialer Richtung von der Spiegelfläche (16) zu der Zylinderfläche (18) stetig abnimmt.Press ram according to one of the preceding claims, characterized in that the radius of curvature of the three-dimensional surface in the radial direction from the mirror surface (16) to the cylindrical surface (18) steadily decreases. Pressstempel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zwischen dem Übergangsbereich (20) und der Zylinderfläche (18) ein mit mindestens einem vorgegebenen Radius abgerundeter Bereich (22) vorgesehen istPress ram according to one of the preceding claims, characterized in that a region (22) rounded off with at least one predetermined radius is provided between the transition region (20) and the cylindrical surface (18) Pressstempel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zwischen dem Übergangsbereich (20) und der Zylinderfläche (18) mindestens eine Kante vorgesehen ist.Press ram according to one of claims 1 to 4, characterized in that between the transition region (20) and the cylindrical surface (18) at least one edge is provided. Pressstempel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die dreidimensionale Fläche die Zylinderfläche (18) einschließt.Press ram according to one of claims 1 to 4, characterized in that the three-dimensional surface encloses the cylindrical surface (18). Pressstempel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stempelkopf (14) einen konvexen Übergangsbereich (24) von der Zylinderfläche (18) zum Schaft (12) aufweist.Press ram according to one of the preceding claims, characterized in that the punch head (14) has a convex transition region (24) from the cylinder surface (18) to the shaft (12). Rundläuferpresse mit einem Rotor, der eine obere und eine untere Stempelführung aufweist, in denen jeweils eine Vielzahl von Pressstempeln (10) nach einem der vorhergehenden Ansprüche geführt sind, die mit Bohrungen einer zwischen der Ober- und Unterstempelführung angeordneten Matrizenscheibe zusammenwirken, wobei die Stempel (10) in Führungsbohrungen der Stempelführungen axial bewegbar sind und ihre Stempelköpfe (14) zum Verpressen von pulverförmigem Material in den Matrizenbohrungen mit Druckrollen der Rundläuferpresse zusammenwirken.Rotary press with a rotor, which has an upper and a lower punch guide, in each of which a plurality of press dies (10) are guided according to one of the preceding claims, which cooperate with bores of a arranged between the upper and lower punch guide die plate, wherein the punch ( 10) are axially movable in guide bores of the punch guides and their punch heads (14) cooperate for pressing powdered material in the die bores with pressure rollers of the rotary press.
EP10006112.6A 2009-07-02 2010-06-12 Press punch for a rotary press Active EP2269813B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009031367A DE102009031367B3 (en) 2009-07-02 2009-07-02 Press stamp for rotary tabletting press, has reflecting surface and transition area forming three-dimensional surface, where course of three-dimensional surface is described by mathematical function and height of stamp head is decreased

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EP2269813A2 true EP2269813A2 (en) 2011-01-05
EP2269813A3 EP2269813A3 (en) 2015-01-21
EP2269813B1 EP2269813B1 (en) 2022-10-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012012575A1 (en) * 2012-06-13 2013-12-19 Jürgen Pagel Pressure roller for rotary press, has stamper that is moved on pitch circle portion of rotor in accordance with selected time constant ratio so that desired movement of stamper is reconstructed into die portion in unloaded state
EP3275639A1 (en) * 2016-07-26 2018-01-31 Fette Compacting GmbH Stamp for a rotary press

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007043582B3 (en) 2007-09-13 2008-11-27 Fette Gmbh Rotor for a rotary tablet press

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8111860U1 (en) * 1981-04-18 1981-09-24 Mense, Brunfrid, 4630 Bochum "STAMP FOR A TABLET PRESS"
JPH066147B2 (en) * 1991-08-08 1994-01-26 株式会社菊水製作所 Punch of rotary powder molding machine
DE19502596C2 (en) 1995-01-28 1997-08-28 Fette Wilhelm Gmbh Measuring device and computer for checking the tablets of the current production made on a rotary press
DE19646536C1 (en) * 1996-10-30 1998-01-29 Korsch Pressen Gmbh Method for producing head surfaces of circular press dies
JP2003106111A (en) * 2001-10-01 2003-04-09 Nsk Ltd Tappet roller
US20070087073A1 (en) 2005-08-23 2007-04-19 Chowdhury Tahseen A Tabletting press
DE102008020748B4 (en) * 2008-04-23 2010-12-30 Fette Gmbh Stamp for a rotary press

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007043582B3 (en) 2007-09-13 2008-11-27 Fette Gmbh Rotor for a rotary tablet press

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012012575A1 (en) * 2012-06-13 2013-12-19 Jürgen Pagel Pressure roller for rotary press, has stamper that is moved on pitch circle portion of rotor in accordance with selected time constant ratio so that desired movement of stamper is reconstructed into die portion in unloaded state
DE102012012575B4 (en) * 2012-06-13 2014-09-25 Jürgen Pagel Tooth pressure roller and profile pressure roller for a rotary press and rotary press
EP3275639A1 (en) * 2016-07-26 2018-01-31 Fette Compacting GmbH Stamp for a rotary press
DE102016113724A1 (en) * 2016-07-26 2018-02-01 Fette Compacting Gmbh Stamp for a rotary press
DE102016113724B4 (en) 2016-07-26 2019-01-17 Fette Compacting Gmbh Stamp for a rotary press
US10343363B2 (en) 2016-07-26 2019-07-09 Fette Engineering GmbH Punch for a rotary press

Also Published As

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US9821525B2 (en) 2017-11-21
US20110000272A1 (en) 2011-01-06
DE102009031367B3 (en) 2010-09-02
PL2269813T3 (en) 2023-05-08
EP2269813B1 (en) 2022-10-12
EP2269813A3 (en) 2015-01-21

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